西南石油大学学报（自然科学版）2012，Vol.34Issue(1)：90-96,7.DOI:10.3863/j.issn.1674-5086.2012.01.014
强敏感性低渗透储层的改造模拟实验初探
Preliminary Discussion of Improvement Experiments on Strong Sensitivity-Low Permeability Reservoir
摘要
Abstract
In Beisantai area, Junggar Basin, 73.11 percent of Cretaceous reservoir is low permeability reservoir. Clay minerals in Cretaceous reservoir are mainly montmorillonite and disordered illite-montmorillonite. Kaolinite, chlorite and illite are at lower levels overall, but local enrichment. Results of sensitivity experiments show that reservoir sensitivity of study area is complex, a variety of sensitivity coexist and directly lead to low-yielding of oil reservoir. Water sensitivity is most strong. Acid sensitivity experiments indicate that mud acid can't improve reservoir quality and reduce reservoir water sensitivity effectively. According to specific reservoir property of study area, composite plug removal liquid with prescription of 8%HC1, 2%CH3COOH, 2%NH4F, 1.5%clay stabilizer A, 2%ferric iron stabilizer TLJ is confected. Plug removal experiments of water sensitivity samples and permeability improvement experiments of natural core samples are conducted under conditions with stimulated actual formation temperature and pressure. Results show that the composite plug removal liquid is valid in plug removal and permeability improvement on reservoir with high montmorillonite and illite-montmorillonite relative content but low chlorite relative content.关键词
准噶尔盆地/低渗透储层/敏感性/复合解堵液/改造实验Key words
Beisantai area/ Cretaceous/ low permeability reservoir/ reservoir sensitivity/ composite plug removal liquid/ improvement experiment分类
能源科技引用本文复制引用
操应长,远光辉,葸克来..强敏感性低渗透储层的改造模拟实验初探[J].西南石油大学学报（自然科学版）,2012,34(1):90-96,7.基金项目
中国石油大学(华东)研究生自主创新科研计划项目(12CX06012A). （华东）
